TW Hydrae: multi-wavelength interferometry of a transition disk

Menu, J.; van Boekel, R.; Henning, T.; Benisty, M.; Chandler, C. J.; Linz, H.; Waelkens, C.; Andrews, S. M.; Calvet, N.; Carpenter, J. M.; Corder, S. A.; Deller, A. T.; Dullemond, C. P.; Greaves, J. S.; Harris, R. J.; Isella, A.; Kwon, W.; Lazio, J.; Mundy, L. G.; Pérez, L. M.; Ricci, L.; Sargent, A. I.; Storm, S.; Testi, L.; Wilner, D. J.

doi:10.1017/s1743921313008016

Published June 2013 | Version Published

Book Section - Chapter Open

TW Hydrae: multi-wavelength interferometry of a transition disk

1. KU Leuven
2. Max Planck Institute for Astronomy
3. Institut de Planétologie et d'Astrophysique de Grenoble
4. National Radio Astronomy Observatory
5. Harvard-Smithsonian Center for Astrophysics
6. University of Michigan–Ann Arbor
7. California Institute of Technology
8. Atacama Large Millimeter Submillimeter Array
9. Netherlands Institute for Radio Astronomy
10. Heidelberg University
11. University of St Andrews
12. University of Illinois Urbana-Champaign
13. Jet Propulsion Lab
14. University of Maryland, College Park
15. European Southern Observatory
16. Arcetri Astrophysical Observatory

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Others:

For over a decade, the structure of the inner "hole" in the transition disk around TW Hydrae has been a subject of debate. To probe the innermost regions of the protoplanetary disk, observations at the highest possible spatial resolution are required. We present new interferometric data of TW Hya from near-infrared to millimeter wavelengths. We confront existing models of the disk structure with the complete data set and develop a new, detailed radiative-transfer model. This model is characterized by: 1) a spatial separation of the largest grains from the small disk grains; and 2) a smooth inner rim structure, rather than a sharp disk edge.

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